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5e568f9e30
Fix git-diff to make it produce useful 3-way diffs for merge conflicts in repositories with autocrlf enabled. Otherwise it always reports that the whole file was changed, because it uses the contents from the working tree without necessary conversion. Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
372 lines
7.1 KiB
Bash
Executable File
372 lines
7.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2006 Johannes E. Schindelin
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#
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test_description='Test special whitespace in diff engine.
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'
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. ./test-lib.sh
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. ../diff-lib.sh
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# Ray Lehtiniemi's example
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cat << EOF > x
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do {
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nothing;
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} while (0);
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EOF
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git update-index --add x
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cat << EOF > x
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do
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{
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nothing;
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}
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while (0);
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EOF
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cat << EOF > expect
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diff --git a/x b/x
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index adf3937..6edc172 100644
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--- a/x
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+++ b/x
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@@ -1,3 +1,5 @@
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-do {
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+do
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+{
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nothing;
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-} while (0);
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+}
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+while (0);
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EOF
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git diff > out
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test_expect_success "Ray's example without options" 'test_cmp expect out'
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git diff -w > out
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test_expect_success "Ray's example with -w" 'test_cmp expect out'
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git diff -b > out
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test_expect_success "Ray's example with -b" 'test_cmp expect out'
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tr 'Q' '\015' << EOF > x
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whitespace at beginning
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whitespace change
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whitespace in the middle
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whitespace at end
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unchanged line
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CR at endQ
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EOF
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git update-index x
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tr '_' ' ' << EOF > x
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whitespace at beginning
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whitespace change
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white space in the middle
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whitespace at end__
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unchanged line
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CR at end
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EOF
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tr 'Q_' '\015 ' << EOF > expect
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diff --git a/x b/x
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index d99af23..8b32fb5 100644
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--- a/x
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+++ b/x
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@@ -1,6 +1,6 @@
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-whitespace at beginning
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-whitespace change
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-whitespace in the middle
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-whitespace at end
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+ whitespace at beginning
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+whitespace change
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+white space in the middle
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+whitespace at end__
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unchanged line
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-CR at endQ
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+CR at end
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EOF
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git diff > out
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test_expect_success 'another test, without options' 'test_cmp expect out'
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cat << EOF > expect
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diff --git a/x b/x
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index d99af23..8b32fb5 100644
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EOF
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git diff -w > out
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test_expect_success 'another test, with -w' 'test_cmp expect out'
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tr 'Q' '\015' << EOF > expect
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diff --git a/x b/x
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index d99af23..8b32fb5 100644
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--- a/x
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+++ b/x
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@@ -1,6 +1,6 @@
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-whitespace at beginning
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+ whitespace at beginning
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whitespace change
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-whitespace in the middle
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+white space in the middle
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whitespace at end
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unchanged line
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CR at endQ
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EOF
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git diff -b > out
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test_expect_success 'another test, with -b' 'test_cmp expect out'
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test_expect_success 'check mixed spaces and tabs in indent' '
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# This is indented with SP HT SP.
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echo " foo();" > x &&
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git diff --check | grep "space before tab in indent"
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'
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test_expect_success 'check mixed tabs and spaces in indent' '
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# This is indented with HT SP HT.
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echo " foo();" > x &&
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git diff --check | grep "space before tab in indent"
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'
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test_expect_success 'check with no whitespace errors' '
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git commit -m "snapshot" &&
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echo "foo();" > x &&
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git diff --check
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'
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test_expect_success 'check with trailing whitespace' '
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echo "foo(); " > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'check with space before tab in indent' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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test_must_fail git diff --check
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'
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test_expect_success '--check and --exit-code are not exclusive' '
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git checkout x &&
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git diff --check --exit-code
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'
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test_expect_success '--check and --quiet are not exclusive' '
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git diff --check --quiet
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'
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test_expect_success 'check staged with no whitespace errors' '
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echo "foo();" > x &&
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git add x &&
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git diff --cached --check
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'
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test_expect_success 'check staged with trailing whitespace' '
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echo "foo(); " > x &&
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git add x &&
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test_must_fail git diff --cached --check
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'
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test_expect_success 'check staged with space before tab in indent' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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git add x &&
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test_must_fail git diff --cached --check
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'
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test_expect_success 'check with no whitespace errors (diff-index)' '
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echo "foo();" > x &&
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git add x &&
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git diff-index --check HEAD
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'
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test_expect_success 'check with trailing whitespace (diff-index)' '
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echo "foo(); " > x &&
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git add x &&
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test_must_fail git diff-index --check HEAD
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'
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test_expect_success 'check with space before tab in indent (diff-index)' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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git add x &&
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test_must_fail git diff-index --check HEAD
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'
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test_expect_success 'check staged with no whitespace errors (diff-index)' '
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echo "foo();" > x &&
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git add x &&
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git diff-index --cached --check HEAD
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'
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test_expect_success 'check staged with trailing whitespace (diff-index)' '
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echo "foo(); " > x &&
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git add x &&
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test_must_fail git diff-index --cached --check HEAD
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'
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test_expect_success 'check staged with space before tab in indent (diff-index)' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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git add x &&
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test_must_fail git diff-index --cached --check HEAD
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'
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test_expect_success 'check with no whitespace errors (diff-tree)' '
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echo "foo();" > x &&
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git commit -m "new commit" x &&
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git diff-tree --check HEAD^ HEAD
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'
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test_expect_success 'check with trailing whitespace (diff-tree)' '
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echo "foo(); " > x &&
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git commit -m "another commit" x &&
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test_must_fail git diff-tree --check HEAD^ HEAD
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'
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test_expect_success 'check with space before tab in indent (diff-tree)' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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git commit -m "yet another" x &&
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test_must_fail git diff-tree --check HEAD^ HEAD
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'
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test_expect_success 'check trailing whitespace (trailing-space: off)' '
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git config core.whitespace "-trailing-space" &&
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echo "foo (); " > x &&
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git diff --check
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'
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test_expect_success 'check trailing whitespace (trailing-space: on)' '
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git config core.whitespace "trailing-space" &&
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echo "foo (); " > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'check space before tab in indent (space-before-tab: off)' '
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# indent contains space followed by HT
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git config core.whitespace "-space-before-tab" &&
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echo " foo ();" > x &&
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git diff --check
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'
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test_expect_success 'check space before tab in indent (space-before-tab: on)' '
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# indent contains space followed by HT
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git config core.whitespace "space-before-tab" &&
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echo " foo (); " > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'check spaces as indentation (indent-with-non-tab: off)' '
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git config core.whitespace "-indent-with-non-tab"
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echo " foo ();" > x &&
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git diff --check
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'
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test_expect_success 'check spaces as indentation (indent-with-non-tab: on)' '
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git config core.whitespace "indent-with-non-tab" &&
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echo " foo ();" > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'check tabs and spaces as indentation (indent-with-non-tab: on)' '
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git config core.whitespace "indent-with-non-tab" &&
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echo " foo ();" > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'line numbers in --check output are correct' '
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echo "" > x &&
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echo "foo(); " >> x &&
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git diff --check | grep "x:2:"
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'
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test_expect_success 'checkdiff detects trailing blank lines' '
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echo "foo();" >x &&
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echo "" >>x &&
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git diff --check | grep "ends with blank"
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'
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test_expect_success 'checkdiff allows new blank lines' '
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git checkout x &&
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mv x y &&
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(
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echo "/* This is new */" &&
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echo "" &&
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cat y
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) >x &&
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git diff --check
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'
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test_expect_success 'combined diff with autocrlf conversion' '
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git reset --hard &&
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echo >x hello &&
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git commit -m "one side" x &&
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git checkout HEAD^ &&
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echo >x goodbye &&
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git commit -m "the other side" x &&
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git config core.autocrlf true &&
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test_must_fail git merge master &&
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git diff | sed -e "1,/^@@@/d" >actual &&
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! grep "^-" actual
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'
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test_done
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